I intended to do my own thing, only contacting the main group to provide information. I honestly don't think I would have ever joined the main group for any extended period, much less try to take control of it through rank. The ONI bits are pretty important to the backstory I had in mind, but if it's not allowed, then that's fine. I honestly just want an outlet with which to tell a story of some guy hopelessly trying to stop the inevitable with little to no resources. The ONI thing would be little more than a plot device.

EDIT: I'll see if I can make it work without him being an ONI operative.